/[MITgcm]/MITgcm/model/inc/GRID.h
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revision 1.17 by adcroft, Thu Sep 27 18:18:31 2001 UTC revision 1.20 by mlosch, Wed Sep 18 16:38:01 2002 UTC
# Line 314  C     drF    - Cell face separation alon Line 314  C     drF    - Cell face separation alon
314  C     Rcolumn  -Total thickness (in r_unit) of the fluid column  C     Rcolumn  -Total thickness (in r_unit) of the fluid column
315  C     R_low  - base of fluid in r_unit (Depth(m) / Pressure(Pa) at top Atmos.)  C     R_low  - base of fluid in r_unit (Depth(m) / Pressure(Pa) at top Atmos.)
316  C     Ro_surf- surface reference (at rest) position, r_unit.  C     Ro_surf- surface reference (at rest) position, r_unit.
317    C     klowC  - index of the lowest ``wet cell'' (2D)
318  C     hFac   - Fraction of cell in vertical which is open i.e how  C     hFac   - Fraction of cell in vertical which is open i.e how
319  C              "lopped" a cell is (dimensionless scale factor).  C              "lopped" a cell is (dimensionless scale factor).
320  C              Note: The code needs terms like MIN(hFac,hFac(I+1))  C              Note: The code needs terms like MIN(hFac,hFac(I+1))
321  C                    On some platforms it may be better to precompute  C                    On some platforms it may be better to precompute
322  C                    hFacW, hFacE, ... here than do MIN on the fly.  C                    hFacW, hFacE, ... here than do MIN on the fly.
323    C     gravitySign - indicates whether gravity points in the opposite
324    C                   direction of R or not.
325    C                 ( = +1 for R=Z (gravity points downward in Z)
326    C                 ( = -1 for R=P (gravity points upward in P)
327  C     rkFac     - Vertical coordinate to vertical index orientation.  C     rkFac     - Vertical coordinate to vertical index orientation.
328  C                 ( -1 same orientation, 1 opposite orientation )  C                 ( -1 same orientation, 1 opposite orientation )
329  C                 ( vertical coord == m  -> rkFac =  1 )  C                 ( vertical coord == m  -> rkFac =  1 )
330  C                 ( vertical coord == Pa -> rkFac = -1 )  C                 ( vertical coord == Pa -> rkFac = -1 )
331    C     maskH  - cell Center full-column mask (= 2D mask)
332  C     maskC  - cell Center land mask  C     maskC  - cell Center land mask
333  C     maskW  - West face land mask  C     maskW  - West face land mask
334  C     maskS  - South face land mask  C     maskS  - South face land mask
# Line 361  C     tanPhiAtU - tan of the latitude at Line 367  C     tanPhiAtU - tan of the latitude at
367  C                 metric term in U equation.  C                 metric term in U equation.
368  C     tanPhiAtV - tan of the latitude at V point. Used for spherical polar  C     tanPhiAtV - tan of the latitude at V point. Used for spherical polar
369  C                 metric term in V equation.  C                 metric term in V equation.
370          COMMON /GRID_I/ klowC
371          INTEGER klowC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
372    
373        COMMON /GRID_R/        COMMON /GRID_R/
374       &  dxC,dxF,dxG,dxV,dyC,dyF,dyG,dyU,       &  dxC,dxF,dxG,dxV,dyC,dyF,dyG,dyU,
375       &  R_low,Ro_surf,HFacC,HFacW,HFacS,       &  R_low,Ro_surf,HFacC,HFacW,HFacS,
# Line 370  C                 metric term in V equat Line 379  C                 metric term in V equat
379       &  recip_hFacC,recip_hFacW,recip_hFacS,       &  recip_hFacC,recip_hFacW,recip_hFacS,
380       &  saFac,       &  saFac,
381       &  xC,yC,rA,rAw,rAs,rAz,xG,yG,       &  xC,yC,rA,rAw,rAs,rAz,xG,yG,
382       &  maskC,maskW,maskS,recip_rA,recip_rAw,recip_rAs,recip_rAz,       &  maskH, maskC,maskW,maskS,
383         &  recip_rA,recip_rAw,recip_rAs,recip_rAz,
384       &  tanPhiAtU, tanPhiAtV,       &  tanPhiAtU, tanPhiAtV,
385       &  cosfacU,cosfacV,sqcosfacU,sqcosfacV,       &  cosfacU,cosfacV,sqcosfacU,sqcosfacV,
386       &  drC,drF,recip_drC,recip_drF,rC,rF,       &  drC,drF,recip_drC,recip_drF,rC,rF,
387         &  gravitySign,
388       &  rkFac, recip_rkFac, xC0, yC0       &  rkFac, recip_rkFac, xC0, yC0
389        _RS dxC            (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)        _RS dxC            (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
390        _RS dxF            (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)        _RS dxF            (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
# Line 412  C                 metric term in V equat Line 423  C                 metric term in V equat
423        _RS recip_rAw      (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)        _RS recip_rAw      (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
424        _RS recip_rAs      (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)        _RS recip_rAs      (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
425        _RS recip_rAz      (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)        _RS recip_rAz      (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
426          _RS maskH          (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
427        _RS maskC          (1-OLx:sNx+OLx,1-OLy:sNy+OLy,1:Nr,nSx,nSy)        _RS maskC          (1-OLx:sNx+OLx,1-OLy:sNy+OLy,1:Nr,nSx,nSy)
428        _RS maskW          (1-OLx:sNx+OLx,1-OLy:sNy+OLy,1:Nr,nSx,nSy)        _RS maskW          (1-OLx:sNx+OLx,1-OLy:sNy+OLy,1:Nr,nSx,nSy)
429        _RS maskS          (1-OLx:sNx+OLx,1-OLy:sNy+OLy,1:Nr,nSx,nSy)        _RS maskS          (1-OLx:sNx+OLx,1-OLy:sNy+OLy,1:Nr,nSx,nSy)
# Line 428  C                 metric term in V equat Line 440  C                 metric term in V equat
440        _RS saFac          (1:Nr)        _RS saFac          (1:Nr)
441        _RS rC             (1:Nr)        _RS rC             (1:Nr)
442        _RS rF             (1:Nr+1)        _RS rF             (1:Nr+1)
443          _RL gravitySign
444        _RS rkFac        _RS rkFac
445        _RS recip_rkFac        _RS recip_rkFac
446        _RS xC0        _RS xC0
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